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Run your first task with Antigravity and Gemini

You end with Antigravity having planned, built and tested one change in your repository, with the ledger line that records who finished it.

  • SpecWithCode
  • 1:14
  • Antigravity
  • Narrated, with captions

Recorded on SpecWithCode 0.2.8 with Antigravity 1.3.0, added 11 October 2026. The current release is SpecWithCode 1.0.44.

Before you start: SpecWeave installed with npm i -g specweave; SpecWithCode installed on a Mac; A Google account for Antigravity.

Length 1:14Captions

Steps

  1. In your repository, run specweave init with the Antigravity adapter. It adds AGENTS.md and the SpecWeave skills.
  2. Open SpecWithCode, then Settings, Providers. Choose Add provider and pick Antigravity; SpecWithCode installs its own Antigravity agent.
  3. Choose Sign in and finish with your Google account in the browser.
  4. Add the repository: choose the plus next to Projects, then Local folder, then its path. A new chat opens.
  5. Pick Antigravity in the model picker. The recording sets Full access for the demo only.
  6. Type $, pick sw-increment and describe the change. The agent writes spec.md with acceptance criteria and a task with its files and test.
  7. Send sw-do. The agent claims the task, changes the code and runs the test. The task is marked done only when the test passes.
  8. Choose Open diff to review the code, the test and the ledger line. Then sw-done verifies and closes the increment.

Transcript

Built from the caption file of the narration.

0:00 Intro

Antigravity in SpecWithCode: plan, build, review.

0:04 Set up the repo

In your repo, run specweave init with the Antigravity adapter. It adds AGENTS.md and eleven SpecWeave skills.

0:11 Connect Antigravity

Open SpecWithCode, then Settings, Providers. Click Add provider and pick Antigravity. SpecWithCode installs its own Antigravity agent. Click Sign in and finish with your Google account in the browser. This one is already signed in.

0:25 Add the project

Add the repo: the plus next to Projects, Local folder, then its path. A new chat opens. Pick Gemini 3.8 Flash under Antigravity, and set Full access for this demo.

0:40 Plan

Type a dollar sign, pick sw-increment, and describe the change. Antigravity writes spec.md: acceptance criteria, and a task with its files and test.

0:53 Build

Then send sw-do. Antigravity claims the task, changes the code, and runs the test. The task is marked done only when the test passes.

1:02 Review

Click Open diff to review the code, the test, and the ledger line that records who finished the task.

1:10 Next

Next, sw-done verifies and closes the increment.

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